Radiocabinet



L. E. PARKER RADIOCABI'NET' Aug. 16. 19.27v v 1,638,875

Filed July 9. 1925 Z69 rozfov'ken Patented Au 16, 1921.

UNITED STATES PATENT I OFFICE.

LEONARD E. PARKER, CHICAGO, ILLHIOIS, ASSIGNOB T0, STEWART-WARNER SPEEDOMETEB CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION 01 VIR- emu.

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Application filed July 9, "1925. Serial No. 42,3 88.

The purpose of this invention is to provide an improved construction of the cabinet for a radio set, commonly called a radio cabinet, and ofthe assemblage therein of the .6 several parts of the radio set for economy of construction and convenience of assem bling and disassembling. It consists in the elements and features of construction shown and described as indicated in the claims. In the drawings w I Figurel is a rear perspective view of a cabinet and radio assemblage embodying this invention, the cabinet being shown open, the rear wall and a portion of the top wall being removed for disclosing the contents in their relation to the respective walls of the cabinet, the several elements of the radio set being shown conventionally. g

Figure 2 is a front elevation of the cabinet.

Figure 3 is a vertical fore-and-aft section in the plane indicated by the line, 3-3, on Figure I Figure 4: is a vertical fore-and-aft section at the plane indicated by the line 44 on Figure 1. v

- Figure 5 is a horizontally longitudinal section at the line 5.-5 on Figure 2.

i In the structure defined in the drawings a rectangular cabinet for radio sets is represented, comprising bottom, A, top in two longitudinally severed sections, B and 13*, the forward side and end members, C, and E, E, formed integrally of a single piece of sheet metal having the end portions folded ,-nat... rgightiangles to the middle portion for forming respectively the ends, E, E, and the front wall, C, said sheet metal member being flanged inwardly at the upper and lower edges and at the oposite ends forming the reai vertical edges of the cabinet ends, E, E, for lodgement and securement of the top and bottom and front and back walls of the cabinet on said flanges. E and E are the flanges at the upper and lower edges of the ends, E, E; C and C are 'the flanges at the upper" and lower edges of the front wall, C. These flanges are mitered at the vertical corners produced by folding the sheet at right angles indicated, as may be seen, at

e, e, with respect to the lower forward corners. Each of the top flanges, E of the end members is terminated or 'cut away at the rear end to leave a gap, 6 between said.

5 cut-away or shortened top flanges of the rear '3 of the top when secured together, form an angular removable closure member which is applied for closing the cabinet by sliding said back board down through the ga s, 6

behind the rear vertical edge flanges, of the ends, E, E, the lower edge of the back becoming engaged in the gap, e at the end of the bottom flange, E of the ends when the section, B of the top lodges upon the upper flanges, E of the said ends.

The cabinet is dimensioned with a View to mounting upon the bottom in permanent fashion the plate or plates for carryin the radio tube sockets, such plate being shown in Figure 1 at G, with five sockets, G G G', G and G mounted thereon. In front so of this plate on the bottom there are mounted certain other elements of the radio set indicated at H, H; The front wall is dimensioned for mounting uponit elements which require no connection with the elements 35 mounted on the bottom except the circuit wires which may be connected at binding posts or the like. Suchelements are indicated comprising conventionally shown adjustable devices of the nature of condensers, J, J and J with associated transforming .or tuningcoils lgjg and K and currentcontrolling devices, M and M TEaId adjust able devices having their operating stems extending through the front wall and'indi: cated by the operating knobs, y, y" and with respect to the devices, J J and J and m and m with respect to the current-con trolling devices, M and M.

In view of the constructional adaptation of this cabing; for vithdmwingtheaear'"---- wall and tlie rear section of the top for effective access to the co tents, it will be seen that the construction admits of completely and independently mounting on the bottom wall all the parts designed to be mounted thereon before applyin and securing said bottom to the integral e hds and back Ivallsg/ and also admits of completely and inde' endently mounting upon the front wall all the ,9

adjustable parts designed for being supported on that wall while the front wall is completely accessible by reason ofthe ab sence of the bottom and of the an ular member comprising the back wall and rear half of the top; and that said elements of the radio set having been thus secured to the bottom and front respectively, the bottom may be applied and secured to the integral sheet metal front and end walls, and the circuit wire connections may be made from the elements on the front wall to the elements on the bottom. The securement of the bottom to the lower edge flanges of the integral sheet metal including the front and ends may be aflected by four screws, T, one near each of the four corners of the bottom as seen in Figures 1, 3, 4 and 5, these screws be ing inserted from the bottom and screwed through the flanges. On account of the thickness of the sheet metal of which the integral front and end walls are made being inadequate for reliable engagement of the screws, it is desirable to apply nuts, 25, to

the screws above the flanges as shown, but the screws may be inserted from the bottom as stated and without necessity for any access to the interior of the cabinet while screwing the screws in, by the expedient of soldering the nuts to the flanges in prpper position registered with the apertures of the flanges through which the screws .take. This expedient for dispensing with interior access in securing the bottom is preferential because, in fact, the nuts positioned as shown, one near each corner, those at the forward corners being engaged with the hot 1 tom flanges of the ends and those at the rear corners being engaged with the bottom flanges of the front, are readily accessible without impedance by reason of the elements mounted on the back and front walls as described.

1. A structure for the purpose indicated having ends and one longitudinal side member formed integrally of a metal sheet, the end portions being folded at right angles to the middle portion, said middle portion member secured at one longitudinal edge to the corresponding edge of the longitudinal side member opposite that which is integral with the ends, said longitudinal side being dimensioned as to thickness for entering said gaps and sliding down inside the vertical flanges of said end members to lodge said top member upon the top flanges of the ends.

2. In the construction defined in claim 1, foregoing, the top member being divided longitudinally into two sections, said sections being joined at their outer longitudinal edges respectively, one to the longitudinal side wall of the cabinet which is entered through the gaps mentioned, and the other to ghe top flange of the opposite longitudinal wa l.

3. In the construction defined in claim 1, the top member being divided longitudinally into two sections, said sections being joined at their outer longitudinal edges respectively, one hingedly to the longitudinal side wall of the. cabinet which is entered through the gaps mentioned and the otherrigidly to the top flange of the opposite longitudinal wall.

In testimony whereof, I have hereunto set my hands at Chicago, Illinois, this 3 day of July, 1925.

LEONARD E. PARKER. 

